Patents by Inventor Masayuki Kawamura

Masayuki Kawamura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190113581
    Abstract: A battery state estimation method is provided. The method includes a first charging step for charging a high-voltage battery until a full charge state is reached, a discharging step for discharging the battery from the full charge state to a lower-limit charge state and calculating a battery capacity of the battery by accumulating a discharge current during the discharging, a second charging step for recharging the battery from the lower-limit charge state to the full charge state, halting the charging for a predetermined period every time one of measuring points defined between the lower-limit charge state and the full charge state is reached, and measuring the OCV of the battery after a predetermined period has passed, and resuming the charging after the measuring is completed, and a correlation characteristic obtaining step for obtaining correlation characteristic of the battery based on SOC and the OCV measured at each measuring point.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 18, 2019
    Applicant: Honda Motor Co.,Ltd.
    Inventor: Masayuki KAWAMURA
  • Publication number: 20190080539
    Abstract: This key security device is used together with a first terminal which may be a mobile phone with high functionality and a second terminal which may be an electronic key. The key security device is provided with: a location information acquiring unit which acquires location information about the first terminal from a global positioning system (GPS) receiver of the first terminal; a level setting unit which sets an alert level according to the acquired location information; and a security guard processor which sets a location determination parameter value according to the alert level, monitors the distance between the first terminal and the second terminal through communication between the first terminal and the second terminal according to the alert level and the location determination parameter, and executes a security guard processing of the second terminal according to the result of the monitoring.
    Type: Application
    Filed: April 20, 2017
    Publication date: March 14, 2019
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Sho YOSHIKAWA, Daisuke SENZAKI, Masayuki KAWAMURA, Hiroaki KOJIMA
  • Patent number: 10161992
    Abstract: A power supply includes a first and second electric storage sections, a first sensor detecting a first current of charge/discharge of the first storage section, a second sensor detecting a second current of the charge/discharge of the second storage section, and a circuit module having a control section to determine a state of the first sensor, the second sensor, and/or a third sensor detecting a third current of a driving section by comparing a first current with a third current in a charge/discharge between the first storage section and the driving section, and/or a second current with the third current in a charge/discharge between the second storage section and the driving section, and by comparing the first current with the second current and the first current with the third current in the discharge of the first storage section to the second storage section and the driving section.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: December 25, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masayuki Kawamura, Hajime Fujita, Hirokazu Oguma
  • Patent number: 10116147
    Abstract: A battery managing device includes a first calculator, a second calculator, a determiner, and a controller. The first calculator calculates a provisional value indicating a charge state of a battery provided in a vehicle including an electric motor as a drive source. The second calculator calculates the charge state of the battery based on a condition obtained by comparing the provisional value and a boundary point which is on a boundary between a plurality of regions divided in accordance with an available charged amount of the battery. The boundary point is determined based on the available charged amount of the battery in a predetermined degradation state. The determiner determines in which region among the regions the charge state of the battery locates. The controller controls to charge and discharge the battery in accordance with the region determined by the determiner.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 30, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masayuki Kawamura, Yoshikazu Nishida, Noriyuki Shimizu
  • Patent number: 9908509
    Abstract: A portable device having a built-in electronic component has normal mode, in which the electronic component functions, and power saving mode, in which power less than that consumed in the normal mode is consumed. The portable device is provided with: a use state detection unit that detects the in-use state or the non in-use state of the portable device; and a mode control unit that shifts the mode of the portable device to the power saving mode, in the cases where a fixed time has elapsed after the use state detection unit detected that the state of the portable device is shifted to the non in-use state.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: March 6, 2018
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Tetsuya Kawamura, Masayuki Kawamura
  • Publication number: 20180037194
    Abstract: An electronic key system includes a device that is subject to operation, an electronic key that is authenticatable by the device, and a wearable device that is wearable by a user. The wearable device is capable of recognizing an intention communication action of the user. The device authenticates the electronic key and permits a device operation associated with the intention communication action of the user recognized by the wearable device.
    Type: Application
    Filed: February 23, 2016
    Publication date: February 8, 2018
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Daisuke SENZAKI, Yuuki KOUNO, Masayuki KAWAMURA, Hiroaki KOJIMA
  • Publication number: 20170363690
    Abstract: A battery-state estimating device for accurately estimating a battery state of a battery includes: an OCV calculating unit calculating an OCV from the detected values; a charge state estimating unit deriving charge state parameters on the basis of the calculated OCV and an Ah (integrated current value)-OCV map; a map adjusting unit adjusting the Ah-OCV map, wherein the map adjusting unit derives a model equation of the Ah-OCV map on the basis of a first OCV at a first time-point and a second OCV at a second time-point calculated by the OCV calculating unit, and the difference between the integrated current values, wherein the difference has been generated by current flowing through the secondary battery 1 during the first time-point and the second time-point; and adjusts the Ah-OCV map using the model equation.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 21, 2017
    Inventors: Masayuki KAWAMURA, Tetsuaki NAKANO
  • Publication number: 20170332499
    Abstract: A module includes a housing including a battery housing portion that houses a battery, an operation accepting unit including a first board including accepting means that accepts an operation and is arranged on the first board, the first board being attached to the housing, and a second board housed within the battery housing portion along with the battery. A control circuit electrically connected to the accepting means is arranged on the second board.
    Type: Application
    Filed: November 26, 2015
    Publication date: November 16, 2017
    Inventors: Daisuke SENZAKI, Yuki KONO, Masayuki KAWAMURA, Hiroaki KOJIMA
  • Publication number: 20170317430
    Abstract: A terminal includes a sheath crimping portion having a bottom plate and a pair of sheath crimp tabs standing upright from two side portions of the bottom plate, the sheath crimping portion being crimped to an end portion of a sheath of a wire; and a core wire connection portion continuous with an end portion of the sheath crimping portion and connected to an exposed core wire of the wire. The sheath crimping portion includes a first crimped portion where a terminal edge portion on a side of the sheath crimping portion from which the sheath extends is crimped to the sheath, and a second crimped portion which is crimped to the sheath at a position closer to the exposed core wire than the first crimped portion. The second crimped portion is crimped to the sheath at a higher compression than the first crimped portion.
    Type: Application
    Filed: April 18, 2017
    Publication date: November 2, 2017
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Masayuki KAWAMURA, Naoyuki UEDA
  • Publication number: 20170309101
    Abstract: An electronic key includes a housing including a battery housing portion that houses a battery, the battery housing portion being provided in the housing, a battery terminal, arranged within the battery housing portion, that makes contact with one electrode of the battery housed within the battery housing portion, and a board, arranged within the battery housing portion, including a first conductive portion that makes contact with the battery terminal and is electrically connected to the one electrode of the battery via the battery terminal, and a second conductive portion that makes contact with and is electrically connected to another electrode of the battery.
    Type: Application
    Filed: November 26, 2015
    Publication date: October 26, 2017
    Inventors: Daisuke SENZAKI, Yuki KONO, Masayuki KAWAMURA, Hiroaki KOJIMA
  • Publication number: 20170292990
    Abstract: A power supply includes a first and second electric storage sections, a first sensor detecting a first current of charge/discharge of the first storage section, a second sensor detecting a second current of the charge/discharge of the second storage section, and a circuit module having a control section to determine a state of the first sensor, the second sensor, and/or a third sensor detecting a third current of a driving section by comparing a first current with a third current in a charge/discharge between the first storage section and the driving section, and/or a second current with the third current in a charge/discharge between the second storage section and the driving section, and by comparing the first current with the second current and the first current with the third current in the discharge of the first storage section to the second storage section and the driving section.
    Type: Application
    Filed: April 3, 2017
    Publication date: October 12, 2017
    Inventors: Masayuki KAWAMURA, Hajime FUJITA, Hirokazu OGUMA
  • Publication number: 20170285109
    Abstract: A power supply apparatus has a first electric storage section, a second electric storage section having an excellent energy density and a poor output density compared with the first storage section, and a control section that acquires first data and second data before and after each time of transferring charge between the first and storage sections, the first data being a combination of an SOC and an OCV of the first storage section, the second data being a combination of an SOC and an OCV of the second storage section, estimates a first correlation between the SOC and the OCV of the first storage section from an aggregation of the first data including reference data, and estimates a second correlation between the SOC and the OCV of the second storage section based on a comparison between a plurality of stored data and an aggregation of the second data.
    Type: Application
    Filed: March 27, 2017
    Publication date: October 5, 2017
    Inventors: Masayuki KAWAMURA, Hajime FUJITA
  • Publication number: 20170282745
    Abstract: A power supply apparatus includes a first and second electric storage sections, a charge/discharge circuit performing charge/discharge between the first and second storage sections, and a control section controlling the charge/discharge circuit. The control section sets at least one of the first and second storage sections as a target storage section, acquires a target SOC and a target OCV which are respectively a charge rate and an open-end voltage of the target storage section, collects, by using charge transfer between the first and second storage sections, data including the target SOC and the target OCV in an order based on a collection rule determined by collected data and the target SOC, the collected data being an aggregation of the data which is collected, and estimates correlation information between an SOC and an OCV of the target storage section based on a plurality of the data.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Inventors: Masayuki KAWAMURA, Hajime FUJITA
  • Publication number: 20170207638
    Abstract: A power storage apparatus includes a first storage module, a second storage module, a charge-discharge circuit, and circuitry. The first storage module includes a first detector to detect first current input to and output from the first capacitor. The second storage module includes a second detector to detect second current input to and output from the second capacitor. The charge-discharge circuit is connected to the first capacitor and the second capacitor to charge and discharge the first capacitor and the second capacitor. The circuitry is configured to control the charge-discharge circuit to control charging and discharging between the first capacitor and the second capacitor. The circuitry is configured to determine whether or not at least one of the first detector and the second detector is to be corrected based on the first current and the second current during charging and discharging between the first capacitor and the second capacitor.
    Type: Application
    Filed: January 11, 2017
    Publication date: July 20, 2017
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Masayuki KAWAMURA
  • Publication number: 20170197586
    Abstract: A portable device having a built-in electronic component has normal mode, in which the electronic component functions, and power saving mode, in which power less than that consumed in the normal mode is consumed. The portable device is provided with: a use state detection unit that detects the in-use state or the non in-use state of the portable device; and a mode control unit that shifts the mode of the portable device to the power saving mode, in the cases where a fixed time has elapsed after the use state detection unit detected that the state of the portable device is shifted to the non in-use state.
    Type: Application
    Filed: September 3, 2015
    Publication date: July 13, 2017
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Tetsuya KAWAMURA, Masayuki KAWAMURA
  • Patent number: 9640933
    Abstract: A method of manufacturing a wire with terminal includes: a) crimping a core wire crimping portion of a terminal onto an exposed core wire extending from an insulating sheathing member at an end portion of a wire; b) crimping a sheath crimping portion of the terminal onto the insulating sheathing member; and c) designating at least one of a first trough-shaped combination portion, which links a terminal connection portion of the terminal and the core wire crimping portion, and a second trough-shaped combination portion, which links the core wire crimping portion and the sheath crimping portion, as a target combination portion and deforming the upright tabs of the target combination portion into an arc shape bulging outward.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: May 2, 2017
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Masayuki Kawamura, Toshiyuki Ihara
  • Publication number: 20170105282
    Abstract: A circuit board structure includes a test terminal. The circuit board structure includes and interface circuit board and a functional circuit board. The interface circuit board includes common test terminals shared by different functional circuit boards. The functional circuit board realizes a product function. The functional circuit board is selected from a plurality of functional circuit boards respectively realizing different product functions. Circuit components required for each product function are mounted on the corresponding functional circuit board.
    Type: Application
    Filed: September 20, 2016
    Publication date: April 13, 2017
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Daisuke SENZAKI, Masayuki KAWAMURA, Hiroaki KOJIMA
  • Patent number: 9570870
    Abstract: The present invention aims to maximally reduce a projecting width of a projecting part formed on a terminal when the terminal is crimped to an exposed core part of an end part of a wire. To achieve this aim, a method for producing a terminal-equipped wire in which a crimping portion of a terminal is crimped to an exposed core part of an end part of a wire includes a) a step of arranging the exposed core part in the crimping portion, b) a step of sandwiching a part of the crimping portion between a lower die surface of a lower die and an upper die surface of an upper die and crimping the part of the crimping portion to the exposed core part, and c) a step of pressing an end part of the crimping portion protruding from the upper die surface from above.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: February 14, 2017
    Assignee: Sumitomo Wiring Systems, Ltd
    Inventors: Masayuki Kawamura, Masahiro Imai, Naoyuki Ueda, Tomohiro Shibata
  • Publication number: 20160344208
    Abstract: A battery managing device includes a first calculator, a second calculator, a determiner, and a controller. The first calculator calculates a provisional value indicating a charge state of a battery provided in a vehicle including an electric motor as a drive source. The second calculator calculates the charge state of the battery based on a condition obtained by comparing the provisional value and a boundary point which is on a boundary between a plurality of regions divided in accordance with an available charged amount of the battery. The boundary point is determined based on the available charged amount of the battery in a predetermined degradation state. The determiner determines in which region among the regions the charge state of the battery locates. The controller controls to charge and discharge the battery in accordance with the region determined by the determiner.
    Type: Application
    Filed: March 31, 2016
    Publication date: November 24, 2016
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masayuki KAWAMURA, Yoshikazu NISHIDA, Noriyuki SHIMIZU
  • Publication number: 20160155583
    Abstract: A circuit board includes a circuit board pattern forming a part of an electronic circuit and including a mounting pattern group on which a receiving means for receiving an operation can be mounted. The electronic circuit is established even when the receiving means is mounted on any mounting pattern of the mounting pattern group.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 2, 2016
    Inventors: Daisuke SENZAKI, Yuki KONO, Masayuki KAWAMURA, Hiroaki KOJIMA